A Magnetic Characterization Of The Texture Of Simple Porous-media

Smith, Mark E. and Stuart, S.N.
(1995)
A Magnetic Characterization Of The Texture Of Simple Porous-media.
Journal of Physics D: Applied Physics,
28
(2).
pp. 229-238.
ISSN 0022-3727.
(doi:10.1088/0022-3727/28/2/001)
(The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
(Contact us about this Publication)

Abstract

A novel, magnetic way of characterizing the geometric structure of the voids in macroporous material is presented. A system of methane gas confined interstitially in a close-packed assembly of non-absorbent zirconia beads constitutes a two-phase model (pore and matrix) of simple porous media. Nuclear magnetic resonance measurements of the proton spectral linewidth and spin echo decay are reported. They are compared with a theoretical model of the intrinsic, non-uniform, magnetic field and its gradient, which are due to the heterogeneous magnetic susceptibility. Three magnetic parameters are derived, which indirectly characterize the pore geometry and which adequately describe the system over seven-ford ranges of gas pressure and bead size.